Flying from India for final La liga match, Need help

Hola Madristas!

After supporting this club for 15 years from afar, I’m finally making the pilgrimage to Madrid! I’ll be there on the 24th of May, and the final La Liga match is the only one I can attend during my trip. There’s no way I want to miss it.

I’ve been checking secondary marketplaces like Viagogo, Seatpick, FootballTicketNet, etc., and Category 3 tickets are going for around €250. I know that’s steep, but with the title race still open, I’m worried prices might shoot up even more the closer we get.

I’ve also been keeping an eye on the official ticket site (Entradas), but I’m unsure when or if tickets will drop there. Has anyone had luck getting tickets at retail from Entradas for big matches like this? When should I try? Is there a chance tickets become available closer to the match?

Also, is it worth gambling and trying to buy a ticket outside the stadium on matchday? I’m scared of missing out completely, but I also don’t want to overpay too early if there's a better option.

Any help, experience, or advice would mean the world to me. This is a dream trip and I just want to make sure I’m in the stadium for it!

Thanks in advance!